I think it is important to understand that mobile is a pain in the ass even when you develop in mobile native code. So even if they release it, it will be the bare minimum. If they do not know already, all the native features will hit them hard. It will be difficult to get it smooth and robust. And as soon as Apple or Google change things, Bubble has to be on top of it or else your app will be out of the stores.

So if your business really depends on it think about a plan B until you have seen it, used it and get confident with it.

Also have a look at something like build natively. Gives you a mobile app without the need for separate bubble processes but it does have some drawbacks. But overall it can very well be the case that their offer is better than that of Bubble this year.